BoilerFaultCodesYour heat pump's internal power system is detecting an electrical surge or overload, causing the unit to shut down to prevent damage.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Inverter High Current
What causes this fault?
This fault occurs when the brain of the heat pump detects a sudden electrical spike or excessive strain on the internal motor. This is usually triggered by a faulty control board sending the wrong signal or the compressor drawing too much power because it is struggling to start. In some cases, a loose electrical connection or moisture on the wiring can also cause this safety shut-down.
This fault can be more frequent during extreme heatwaves or cold snaps, when the system has to work at its maximum capacity for long periods, putting more stress on the electrical components.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like L1E — no call-out fees, no surprises.
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Could it be time for a new boiler?
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